Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Foundation structure of soft soil stratum and construction method thereof
The invention discloses a foundation structure of a soft soil stratum and a construction method thereof, and relates to the field of foundation construction. The problems that high backfill soil and adeep soft muddy soil foundation are poor in stability, and foundation settlement and differential settlement are difficult to control are solved. According to the construction method, small holes aredistributed in the pile periphery of a prefabricated pipe pile in a staggered mode at will, pre-buried barbs are arranged at the small holes, the prefabricated pipe pile is sleeved with geotextile tobe implanted into a soft soil layer, water in soil around the pile permeates through the geotextile and enters an inner pipe from the small holes to be pumped out, after drainage consolidation, the geotextile is torn off, soil around the prefabricated pipe pile enters the pipe through the small holes in the side surface of the prefabricated pipe pile, then foundation soil is backfilled in the pipe of the prefabricated pipe pile, a pile cap is cast in place at the top end of the prefabricated pipe pile, and a first reinforced layer, a cushion layer, a second reinforced layer and a soil fillinglayer are sequentially laid on the pile cap. According to the foundation structure, the foundation bearing capacity of a coastal soft mudflat area can be effectively improved, the filling load borneby soil between piles is small, filling settlement is reduced, and the construction period is effectively shortened.
本发明公开了一种软土地层的地基结构及其施工方法，涉及地基基础施工领域。高回填土与深厚软弱淤泥质土地基稳定性差，基础沉降和不均匀沉降控制难度大。本发明在预制管桩的桩周分布小孔，小孔呈错位任意分布，小孔处设有预埋倒钩，预制管桩套上土工织物植入软土地层，桩周土中的水渗过土工织物由小孔处进入内管后抽水排出，排水固结后，将土工织物扯破，使预制管桩的桩周土经预制管桩侧表面的小孔进入管内，然后把地基土回填在预制管桩的管内，预制管桩顶端现浇桩帽，桩帽往上依次铺设第一加筋层、垫层、第二加筋层和填土层。能有效提升沿海软弱滩涂地区的地基承载力，使得桩间土承担的填土荷载较少，填土沉降减小，有效缩短施工周期。
Foundation structure of soft soil stratum and construction method thereof
The invention discloses a foundation structure of a soft soil stratum and a construction method thereof, and relates to the field of foundation construction. The problems that high backfill soil and adeep soft muddy soil foundation are poor in stability, and foundation settlement and differential settlement are difficult to control are solved. According to the construction method, small holes aredistributed in the pile periphery of a prefabricated pipe pile in a staggered mode at will, pre-buried barbs are arranged at the small holes, the prefabricated pipe pile is sleeved with geotextile tobe implanted into a soft soil layer, water in soil around the pile permeates through the geotextile and enters an inner pipe from the small holes to be pumped out, after drainage consolidation, the geotextile is torn off, soil around the prefabricated pipe pile enters the pipe through the small holes in the side surface of the prefabricated pipe pile, then foundation soil is backfilled in the pipe of the prefabricated pipe pile, a pile cap is cast in place at the top end of the prefabricated pipe pile, and a first reinforced layer, a cushion layer, a second reinforced layer and a soil fillinglayer are sequentially laid on the pile cap. According to the foundation structure, the foundation bearing capacity of a coastal soft mudflat area can be effectively improved, the filling load borneby soil between piles is small, filling settlement is reduced, and the construction period is effectively shortened.
本发明公开了一种软土地层的地基结构及其施工方法，涉及地基基础施工领域。高回填土与深厚软弱淤泥质土地基稳定性差，基础沉降和不均匀沉降控制难度大。本发明在预制管桩的桩周分布小孔，小孔呈错位任意分布，小孔处设有预埋倒钩，预制管桩套上土工织物植入软土地层，桩周土中的水渗过土工织物由小孔处进入内管后抽水排出，排水固结后，将土工织物扯破，使预制管桩的桩周土经预制管桩侧表面的小孔进入管内，然后把地基土回填在预制管桩的管内，预制管桩顶端现浇桩帽，桩帽往上依次铺设第一加筋层、垫层、第二加筋层和填土层。能有效提升沿海软弱滩涂地区的地基承载力，使得桩间土承担的填土荷载较少，填土沉降减小，有效缩短施工周期。
Foundation structure of soft soil stratum and construction method thereof
一种软土地层的地基结构及其施工方法
GE JUNKAI (Autor:in) / TAN YONGFENG (Autor:in) / ZHOU ZHENGDONG (Autor:in) / XU BIN (Autor:in) / FANG JINGYU (Autor:in) / GUO HUA (Autor:in) / LIAO YULONG (Autor:in) / FU DAHONG (Autor:in) / JIANG WEIJIE (Autor:in) / CAI GUANGSHENG (Autor:in)
17.07.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
E02D
FOUNDATIONS
,
Gründungen
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